Any project. Any sector. Anywhere in Australia.

All you need is Onecompany.

IT. Infrastructure. Finance. Health. Residential. Whatever the project — we plan, procure and deliver it from business case to closeout. Fixed price. AI-powered efficiency. Senior directors. One company for everything.

Fixed
Price — locked upfront, no surprises
AI
Powered — faster, leaner delivery
11
Service lines, any sector
AUS
Nationwide delivery

One firm.
Every project type.
No limits.

Onecompany is a project management and advisory firm for any project, anywhere in Australia — infrastructure, IT systems, financial programs, medical facilities, residential developments, government initiatives, commercial property. If it needs to be planned, procured and delivered, we do it.


We work exclusively for project owners, never contractors. Director-level expertise on every engagement. That is why we are called Onecompany — one firm for everything your project needs.


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Owner-side always

We represent you — not the contractor, not the developer. Total independence, total accountability.

Senior people

Directors do the work. No juniors billing on your project. No rotation. Same person from start to finish.

Adelaide based, Australia wide

Headquartered in SA, we deliver projects across all states — government, private sector, and residential.

Fixed price & AI-powered

Price locked upfront. AI tools cut the manual work. You save time, you save money — and there are no surprises on the invoice.

Eleven service lines. One firm.

From early-stage planning to contract closeout — across any project type, any industry. AI-assisted delivery, fixed-price engagements, all the capability you need under one roof.

01

Project Director / Owner's Representative

Embedded senior PM on your behalf — leading delivery, managing contractors, protecting your interests across the full lifecycle.

02

Procurement Advisory

Strategy, RFT preparation, evaluation support, contract award and supplier negotiation. We protect your budget from the start.

03

Contract Management

Administration, variation management, claims assessment, contractor performance and monthly reporting. High recurring value.

04

Business Case Development

Strategic justification, options analysis, cost-benefit, and government funding submissions. Being in early creates long-term relationships.

05

PMO Establishment & Governance

Governance frameworks, reporting templates, risk registers, steering committee support and assurance reviews — stood up fast.

06

Program Management

Management of a portfolio of related projects — schedule integration, resource coordination, executive reporting and governance.

07

Feasibility & Planning

Early-stage project planning, feasibility studies, risk assessment and master scheduling. Front-end loading done right.

08

Stakeholder Management

Stakeholder mapping, engagement planning, community and government relations. Projects live or die on stakeholder management — we make sure yours doesn't.

09

Cost Management

Budget development, cost planning, forecasting, earned value analysis and financial reporting. We keep your project financially on track from first estimate to final account.

10

Change Management

Organisational change planning, impact assessment, communications, training needs and adoption strategies. We manage the people side of change so your project actually sticks.

11

AI Process Automation

We identify where AI tools can eliminate manual work in your project — reporting, scheduling, document processing, risk analysis. Faster delivery, lower cost, same quality outcome.

What makes us different.

The large consulting firms have scale. We have something more valuable: senior expertise, fixed pricing, AI-powered efficiency, and your outcomes as our only priority.


Talk to a Director →
01

Owner-side only — no conflicts, ever

We never represent contractors or developers. We work exclusively for project owners. That means your interests and our interests are always identical — no conflict of interest, ever.

02

Directors do the work — not juniors

When you engage Onecompany, you get a Director on your project. Not a junior PM supervised from a distance. The person you meet in the pitch meeting is the person who turns up every week.

03

Based in Adelaide, working across Australia

Headquartered in Adelaide with the reach to work on any project, in any state. We understand local and federal procurement, private sector delivery, and residential development across the country.

04

Full lifecycle — no handover gaps

We cover strategy through to closeout. One firm, one relationship, continuous institutional knowledge. Nothing gets lost between stages, and you never have to re-brief a new team mid-project.

05

Independent boutique — SME procurement eligible

No corporate overhead. No bureaucracy. Fast decisions. And as an Australian SME, we are eligible for government contracts reserved specifically for smaller providers under Commonwealth procurement rules.

06

Fixed price — no surprises, ever

We lock the price before we start. No open-ended time-and-materials billing, no scope creep invoices, no end-of-month surprises. You know exactly what you are paying before we do a single hour of work.

07

AI-powered delivery — we save you time and money

We use AI tools to automate the manual, repetitive parts of project management — reporting, scheduling, document analysis, risk tracking. That means faster delivery, lower cost, and a Director spending their time on the decisions that actually matter.

Two things no other firm offers together.

Fixed price certainty. AI-powered efficiency. We built Onecompany around both — because you deserve to know what you're paying, and you deserve a team using every tool available to deliver it faster.

Fixed Price

We lock the price.
You have zero surprises.

Most consulting firms bill time and materials — which means your costs grow with every complication, every change request, every extra meeting. We do the opposite. We agree a fixed price upfront, and that is what you pay. Full stop.

  • Price agreed and locked before we start — nothing changes without your explicit approval
  • No open-ended retainers that quietly grow each month
  • No "scope creep" invoices at the end of a project
  • Clear deliverables tied to every dollar you spend
  • If we underestimate the work, that is our problem — not yours
AI-Powered

We use AI to save
your time and money.

We integrate AI tools directly into how we manage your project — automating the manual, repetitive work that traditionally eats up hours of expensive consultant time. Less admin, faster reporting, smarter risk analysis. The savings flow to you.

  • Automated progress reporting — weekly status updates generated in minutes, not hours
  • AI-assisted document review for contracts, tenders and specifications
  • Intelligent risk and issue tracking with early-warning alerts
  • Faster schedule analysis and scenario modelling
  • Our Director focuses on decisions — AI handles the paperwork

Any sector. Any project.

Project management is a discipline, not an industry. We bring senior expertise and owner-side commitment to every sector, every project type, and every state across Australia.

IT & Technology
Infrastructure & Construction
Health & Medical
Financial Services
Government & Public Sector
Transport & Roads
Education
Defence
Energy & Utilities
Commercial Property
Residential

Australia is building. Every sector needs experienced delivery.

From SA's $27.3 billion infrastructure commitment to major IT transformations, residential developments and private sector programs across the country — the demand for experienced, senior project management has never been higher. Onecompany is here to meet it, in any state, in any sector.


Discuss your project →
$27.3B
SA infrastructure commitment to 2028
11
Sectors served across public and private
SME
Eligible for government SME-reserved contracts nationally
25%
Federal contracts reserved for SMEs under $1B
Nikolai Pustynnikov

Nikolai Pustynnikov

Director — Project Management & Advisory

I founded Onecompany with one simple idea: one firm that can handle everything a project needs — regardless of the sector, the state, or the scale. IT systems rollouts, infrastructure builds, residential developments, financial transformation programs, hospital redevelopments — the discipline of project management is the same. The principles never change.

Based in Adelaide and working across Australia, I have led complex programs across government and private sectors, with deep expertise in procurement, contract management, cost management, change management and stakeholder engagement. Onecompany exists to bring senior, independent, owner-side expertise directly to your project — wherever it is.

Infrastructure Delivery IT Projects Procurement & Contracts Cost Management Change Management Program Management Government Advisory Stakeholder Management PMO Governance Residential Development Australia Wide
Work with me →

Built on results, not promises.

Nikolai brought exactly what we needed — a senior person who understood procurement inside-out and managed our contractors with authority from day one. The project delivered on time and within budget.

Project Director
SA Government Infrastructure Program

What I value most is that Onecompany is genuinely on our side. There are no conflicts — just straight advice on what is actually best for our project and our budget. That is rare in this industry.

Asset Manager
South Australian Private Developer

The procurement advisory Onecompany provided saved us months of rework and significantly de-risked our supplier selection. We got exactly what we scoped, on the timeline we needed.

Program Manager
Capital Works — SA Local Government

Let's talk about your project.

Whether you have a project ready to start, a problem to solve, or just want to understand what Onecompany can do for you — reach out directly. No sales process, no junior account manager. You'll speak with a Director.

Phone 0403 225 427
Address Unit 1, 2A Joan Avenue
Fulham Gardens SA 5024
Website 1company.au

We respond within one business day. Your information is kept strictly confidential.